Hollow sheet-metal ware



(No Model.)

W. EDGE. HOLLOW SHEET METAL WARE.

No. 492,463. Patented Feb. 28, 18 93.

INVENTOH.

QV/TNESSES:

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PATENT OFFICE.

WVILLIAM EDGE, OF BROOKLYN, NEW YORK.

HOLLOW SHEET-METAL WARE.

SPECIFIGATION forming part of Letters Patent No. 492,463, dated February28, 1893. Application filed April 7, 1892. Serial No. 428,132. (Nomodel.)

To all whom it may concern:

Be it known that I, WILLIAM EDGE, of Brooklyn, Kings county, in theState of New York, have invented certain new and useful Improvements inI-Iollow Sheet-Metal Ware and Vessels; and I do hereby declare that thefollowing is a full, clear, and exact description of the invention.

The object of my invention is, the production of hollow sheet metalvessels, having longitudinal corrugations or flut-ings and contractedends with transverse ribs or beads.

The invention consists in the new and improved fluted or corrugatedmetal vessels, having contracted ends and tapering corrugations, and inthe combination and arrangement of the various parts thereof, substantially as hereinafter described and claimed.

Referring to the accompanying drawings, in which like letters ofreference indicate corresponding parts: Figure 1 is a central,longitudinal section of a piece of copper or brass tube. Fig. 2 is anend view of the vessel shown in Fig. 3 embodying my invention. Fig. 3 isa side elevation of a vessel embodying my invention, a portion of itbeingin section on a line 55 of Fig. 2. Figs. at, 5, 6, and 7, aredetail views, showing the tapering corrugations on the sides withvarious forms of transverse beads or ribs.

I have heretofore made application for Letters Patent for a process ofmanufacturing the shells or vessels, as herein shown, and I shall makeno claim in this application for any such process, or the machineemployed therefor, but shall simply refer to the same as explaining thefinished product. This application was filed November 16, 1891, and hasthe Serial No. 412,012.

In the drawings, a represents a section of a tube made of copper, brassor any similar material, and of such length and diameter, as may berequired to produce the article proposed. This piece of tube is formedby proper machinery with longitudinal corrugations or fiutings 1) uponthe outside, the ends of the corrugated tube being afterward drawninward or contracted, as shown at c, and forming when viewed from theend, a perfect series of tapering corrugations or flutings.

When desired, the article can be formed with plain beads or ribs f,extending transversely across the shell and can be made in pairs, ifdesired, as shown in Fig. 3,0rasingle central one can be used, as willbe understood.

In forming a shell like that shown in Fig. 3, the corrugations extendfrom the contracted ends toward the nearest bead or rib fand from onebeadfto the other. The body of the corrugated vessel between the beadscan be concave, as shown in Fig. 3, or may be made convex, or parallelwith the axis of the shell, as may be preferred. The beading and thelongitudinal end corrugations are all formed in the proper machine fromthe same exterior surface of the tube, and they are all homogeneous, asshown in the sectional part of Fig.' 3. These transverse ribs or beadscan be formed of various shapes in cross section, as shown in Figs. 3,4, 5, 6, and 7. The use of these transverse ribs or beads not only addsbeauty to the general appearance, but also materially strengthens theshell, as will be understood.

Shells or vessels, when made as above described, are very light, andcombine therein, great strength, and can be easily applied when desiredfor ornamentation with open ends in the manner shown. Or with the endssealed, they form a complete, convenient and strong reservoir keg orbarrel, much lighter than wood, and with greater strength.

What I claim as my invention is'- As a new article of manufacture, ahollow sheet metal body, provided with longitudinal taperingcorrugations said corrugations extending from end to end, and said metalbody being narrowed at both ends to a diameter less than that of thecenter, and also provided with one or more transverse ribs or beads f,substantially as described and set forth.

WILLIAM EDGE. Witnesses:

E. L. SHERMAN, L. M. WAOHSOHLAGER.

